Just about finished with framing and am considering using Grengaurd Raindrop3D as a weather/air barrier and Greengaurd XP38 as a thermal break with corrugated metal siding over it. Any thoughts? Climate Zone 4 marine area San Juan Islands Washington state.

Thanks

Drew

Is Raindrop3D rated as a WRB?

XP38 isn't much of a thermal break, at only R1.5. It's not sufficient R value from a dew-point control point of view for either 2x4 or 2x6 framing, even when added to the